add 2x(z-x-y) and 2y(z-x-y)
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Answered by
19
=2x (z-x-y) + 2y (z-x-y)
=2xz- 2x^2-2xy + 2yz -2xy -2y^2
=2xz-2x^2-4xy+2yz-2y^2
Answered by
9
2xz-2x^2-2xy + 2yz-2yx-2y^2
2xz-2x^2 + 2yz-2y^2
2xz-2x^2 + 2yz-2y^2
Megh55555:
I did one mistake before plus -4xy
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